本题目来源于试卷: Interaction & Interdependence C.1 Enzymes & Metabolism，类别为 IB生物学
[单选题]
Which of the following describes the role of inhibc q ,o r5qik4 sr1xy+0h3yk*pcisyln+1of 3 kc3tors in enzyme-catalysed reactionssc+f13k ynol3?
A. Activates the enzyme involved in the reaction.
B. Facilitates binding of the substrate to the active site.
C. Speeds up the rate of reaction.
D. Reduces the rate of reaction.
参考答案: D
本题详细解析:
Inhibitors prevent enzymes from catalysing reactions and thei t xqaoz1(-y)refore decrease the rate of enzyme catalysed reactions.
Inho-a)1 qt y(ixzibitors do not activate enzymes, thereby increasing the rate of reaction (Choice A).
Inhibitors do not help the substrate bind to the active site (Choice B). In fact they usually prevent the substrate from binding to the active site.
Inhibitors decrease the rate of reaction, they do not speed it up (Choice C).
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